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qemu/hw/intc
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Peter Maydell 8b8bb0146b hw/intc/arm_gicv3_its: Check table bounds against correct limit 
Currently when we fill in a TableDesc based on the value the guest
has written to the GITS_BASER<n> register, we calculate both:
 * num_entries : the number of entries in the table, constrained
   by the amount of memory the guest has given it
 * num_ids : the number of IDs we support for this table,
   constrained by the implementation choices and the architecture
   (eg DeviceIDs are 16 bits, so num_ids is 1 << 16)

When validating ITS commands, however, we check only num_ids,
thus allowing a broken guest to specify table entries that
index off the end of it. This will only corrupt guest memory,
but the ITS is supposed to reject such commands as invalid.

Instead of calculating both num_entries and num_ids, set
num_entries to the minimum of the two limits, and check that.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220122182444.724087-13-peter.maydell@linaro.org
2022-01-28 14:29:47 +00:00
..
allwinner-a10-pic.c Clean up inclusion of sysemu/sysemu.h 2019-08-16 13:31:53 +02:00
apic.c Do not include cpu.h if it's not really necessary 2021-05-02 17:24:51 +02:00
apic_common.c Do not include cpu.h if it's not really necessary 2021-05-02 17:24:51 +02:00
arm_gic.c hw/intc/arm_gic: Allow reset of the running priority 2022-01-20 11:47:52 +00:00
arm_gic_common.c arm_gic: Mask the un-supported priority bits 2020-02-28 16:14:57 +00:00
arm_gic_kvm.c Do not include cpu.h if it's not really necessary 2021-05-02 17:24:51 +02:00
arm_gicv2m.c arm tcg cpus: Fix Lesser GPL version number 2020-11-15 16:42:14 +01:00
arm_gicv3.c hw/intc/arm_gicv3: Honour GICD_CTLR.EnableGrp1NS for LPIs 2022-01-28 14:29:47 +00:00
arm_gicv3_common.c hw/intc/arm_gicv3: Set GICR_CTLR.CES if LPIs are supported 2022-01-28 14:29:47 +00:00
arm_gicv3_cpuif.c hw/intc/arm_gicv3: Extract gicv3_set_gicv3state from arm_gicv3_cpuif.c 2021-12-15 10:11:34 +00:00
arm_gicv3_cpuif_common.c hw/intc/arm_gicv3: Extract gicv3_set_gicv3state from arm_gicv3_cpuif.c 2021-12-15 10:11:34 +00:00
arm_gicv3_dist.c hw/intc: GICv3 ITS Feature enablement 2021-09-13 21:01:08 +01:00
arm_gicv3_its.c hw/intc/arm_gicv3_its: Check table bounds against correct limit 2022-01-28 14:29:47 +00:00
arm_gicv3_its_common.c hw/intc/arm_gicv3_its: Revert version increments in vmstate_its 2021-11-22 18:17:19 +00:00
arm_gicv3_its_kvm.c hw/intc: GICv3 ITS initial framework 2021-09-13 16:07:54 +01:00
arm_gicv3_kvm.c hw/intc/arm_gicv3: Support multiple redistributor regions 2021-11-15 16:12:59 +00:00
arm_gicv3_redist.c hw/intc/arm_gicv3_redist: Remove unnecessary zero checks 2022-01-28 14:29:47 +00:00
armv7m_nvic.c arm: Move system PPB container handling to armv7m 2021-09-01 11:08:18 +01:00
aspeed_vic.c Include migration/vmstate.h less 2019-08-16 13:31:52 +02:00
bcm2835_ic.c hw/intc/bcm2835_ic: Trace GPU/CPU IRQ handlers 2020-10-20 16:12:00 +01:00
bcm2836_control.c hw/intc/bcm2836_control: Use IRQ definitions instead of magic numbers 2020-10-20 16:12:00 +01:00
etraxfs_pic.c hw: Replace anti-social QOM type names 2021-03-19 15:18:43 +01:00
exynos4210_combiner.c Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
exynos4210_gic.c Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
gic_internal.h hw/intc/arm_gic: Drop GIC_BASE_IRQ macro 2018-09-25 15:13:24 +01:00
gicv3_internal.h hw/intc/arm_gicv3: Set GICR_CTLR.CES if LPIs are supported 2022-01-28 14:29:47 +00:00
goldfish_pic.c hw/m68k: Fix typo in SPDX tag 2021-11-09 10:11:27 +01:00
grlib_irqmp.c Do not include cpu.h if it's not really necessary 2021-05-02 17:24:51 +02:00
heathrow_pic.c Include hw/hw.h exactly where needed 2019-08-16 13:31:52 +02:00
i8259.c hw/intc/i8259: Refactor pic_read_irq() to avoid uninitialized variable 2021-03-19 08:48:18 -04:00
i8259_common.c isa: Convert uses of isa_create() with Coccinelle 2020-06-15 22:05:28 +02:00
imx_avic.c Include migration/vmstate.h less 2019-08-16 13:31:52 +02:00
imx_gpcv2.c hw: Do not include qemu/log.h if it is not necessary 2021-05-02 17:24:50 +02:00
intc.c intc: add an interface to gather statistics/informations on interrupt controllers 2016-10-04 10:00:25 +02:00
ioapic.c Remove superfluous timer_del() calls 2021-01-08 15:13:38 +00:00
ioapic_common.c nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
Kconfig hw/intc/arm_gicv3: Introduce CONFIG_ARM_GIC_TCG Kconfig selector 2021-12-15 10:35:10 +00:00
loongson_liointc.c hw/intc/loongson_liointc: Fix per core ISR handling 2021-02-21 18:41:46 +01:00
m68k_irqc.c hw/m68k: Fix typo in SPDX tag 2021-11-09 10:11:27 +01:00
meson.build hw/intc/arm_gicv3: Introduce CONFIG_ARM_GIC_TCG Kconfig selector 2021-12-15 10:35:10 +00:00
mips_gic.c qdev: set properties with device_class_set_props() 2020-01-24 20:59:15 +01:00
omap_intc.c omap_intc: Use typedef name for instance_size 2020-09-09 13:20:22 -04:00
ompic.c hw: Do not include qemu/log.h if it is not necessary 2021-05-02 17:24:50 +02:00
openpic.c hw/intc: openpic: Clean up the styles 2021-09-30 12:26:06 +10:00
openpic_kvm.c memory: Name all the memory listeners 2021-09-30 15:30:24 +02:00
pl190.c Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
pnv_xive.c dma: Let ld*_dma() propagate MemTxResult 2021-12-31 01:05:27 +01:00
pnv_xive_regs.h ppc/pnv: add a XIVE interrupt controller model for POWER9 2019-03-12 14:33:04 +11:00
ppc-uic.c misc: Correct relative include path 2021-06-05 21:10:42 +02:00
realview_gic.c error: Eliminate error_propagate() with Coccinelle, part 1 2020-07-10 15:18:08 +02:00
riscv_aclint.c hw/intc: Upgrade the SiFive CLINT implementation to RISC-V ACLINT 2021-09-21 07:56:49 +10:00
rx_icu.c hw/intc: fix heap-buffer-overflow in rxicu_realize() 2020-11-23 10:41:58 +00:00
s390_flic.c Do not include cpu.h if it's not really necessary 2021-05-02 17:24:51 +02:00
s390_flic_kvm.c target/s390x: move kvm files into kvm/ 2021-07-07 14:01:59 +02:00
sh_intc.c hw/intc/sh_intc: Remove unneeded local variable initialisers 2021-10-30 18:39:37 +02:00
sifive_plic.c target/riscv: Support start kernel directly by KVM 2022-01-21 15:52:56 +10:00
slavio_intctl.c Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
spapr_xive.c dma: Let dma_memory_rw() take MemTxAttrs argument 2021-12-30 17:16:32 +01:00
spapr_xive_kvm.c spapr/xive: Use xive_esb_rw() to trigger interrupts 2021-10-21 11:42:47 +11:00
trace-events hw/intc/arm_gicv3_its: Add tracepoints 2022-01-28 14:29:47 +00:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
vgic_common.h intc/gic: Extract some reusable vGIC code 2015-09-24 01:29:36 +01:00
xics.c Do not include cpu.h if it's not really necessary 2021-05-02 17:24:51 +02:00
xics_kvm.c Do not include cpu.h if it's not really necessary 2021-05-02 17:24:51 +02:00
xics_pnv.c non-virt: Fix Lesser GPL version number 2020-11-15 16:38:24 +01:00
xics_spapr.c Do not include cpu.h if it's not really necessary 2021-05-02 17:24:51 +02:00
xilinx_intc.c Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
xive.c dma: Let dma_memory_read/write() take MemTxAttrs argument 2021-12-30 17:16:32 +01:00
xlnx-pmu-iomod-intc.c qdev: set properties with device_class_set_props() 2020-01-24 20:59:15 +01:00
xlnx-zynqmp-ipi.c Include migration/vmstate.h less 2019-08-16 13:31:52 +02:00